Marco Island, Florida There are towns on the beach, and then there are towns that are all beach. Marco Island, off the Gulf Coast of Florida, is all white sands, stretching as far as the eye can see. Time moves as slowly as the tides on the biggest of Florida’s 10,000 Islands, where kayaking, paddle boarding and snorkeling are just about the only things on your schedule. A day at the beach takes on a whole new meaning when the beach is truly all there is.